FHWA GHG Analysis Toolkitenvironment.transportation.org/pdf/2014_air_quality... · 2014-08-01 · FHWA GHG Analysis Toolkit AASHTO Air Quality Peer Exchange May 6-7, 2014 Diane Turchetta

FHWA GHG Analysis

Toolkit

AASHTO Air Quality Peer Exchange May 6-7, 2014 Diane Turchetta FHWA John Davies FHWA

FHWA GHG Analysis Tools

Handbook for Estimating Greenhouse Gas Emissions for Integration in the Planning Process

A Performance-Based Approach to Addressing Greenhouse Gas Emissions in Transportation Planning

Handbooks

Energy and Emissions Reduction Policy Analysis Tool (EERPAT)

Construction and Maintenance GHG Calculator

Mo

dels

GHG Analysis Handbook

To help state DOTs and MPOs of all sizes and capabilities

understand possible approaches, data sources, and step-

by-step procedures for analyzing GHG emissions in the

planning process.

Designed to:

• Be user friendly and informative,

particularly for State DOTs and

MPOs that have limited experience

with emissions analysis.

• Provide references to more detailed

user manuals and technical

resources.

PBPP Handbook

Addresses selection of relevant

GHG performance measure(s)

Techniques for evaluating the

impact of strategies and plans

Use of performance

information to support

investment choices and

decision-making

Energy and Emissions Reduction Policy Analysis Tool (EERPAT)

EERPAT is…

An advanced sketch model

Comprised of connected sub-models…

— Regression and logit models, which draw on aspects of activity-based and 4-step modeling

— Vehicle fleet and emissions models

— designed to estimate the response of travel demand and GHGs to policy initiatives

Built in the R statistical computer language

…intended to support rapid evaluation of policy scenarios

Designed specifically to address GHG mitigation strategies, many of which are difficult to evaluate using traditional travel models

Evaluate policy interactions

Faster run time than regional travel demand models

Integrated analysis of travel demand and emissions, reflecting MOVES emissions factors

Tool supported by FHWA, and available at: http://www.planning.dot.gov/FHWA_tool/

Policies Addressed by EERPAT

Land Use / Smart Growth

Transit / Nonmotorized

Pricing (Parking, fuel tax, VMT tax)

Operations and Eco-driving

Vehicle Technology (EV and efficiency improvements)

Using EERPAT to Evaluate Policies and other Factors Affecting GHGs

Source: Portland Metro

EERPAT Pilot Testing

Objectives of pilot testing

Evaluate usefulness of EERPAT as a policy analysis tool for State DOTs

Improve usability of tool – development of Graphical Usable Interface

Create a community of users to provide feedback for enhancing model

Promote ongoing use of tool for planning and climate mitigation analysis

Status of Pilot Projects

• WSDOT: Running final set of pilot scenarios

• MDOT: Running final set of pilot scenarios

• CDOT: Preliminary scenario testing

• VTrans: Pilot testing largely completed; May 29 presentation to management and

Vermont Climate Cabinet

VTrans – Base Case Emissions and GHG Target

0

2000

4000

6000

8000

10000

12000

2010 2020 2030 2040 2050

Base case Includes increased

CAFE standards

through 2025

GHG Target 80 percent reduction

from 1990 levels by

2050

Preliminary Results from VTrans

0

2000

4000

6000

8000

10000

12000

2010 2020 2030 2040 2050

Base

a_SmartGrowth

b_parking+tdm

c_transit+bikeped

d_VMTcharge

e_ElectricFleet

g_CNG

a+b

a+b+c

a+b+c+d

a+b+c+d+e

Percent Change Relative to Base Scenario

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

0.02

2020 2030 2040 2050

Base

a_SmartGrowth

b_parking+tdm

c_transit+bikeped

d_VMTcharge

e_ElectricFleet

g_CNG

a+b

a+b+c

a+b+c+d

a+b+c+d+e

Vermont is a rural state; which likely limits the

effectiveness of land use and demand

management strategies

FHWA Construction and Maintenance GHG Calculator

Create a simple, user-friendly sketch tool to

Provide estimates of energy and GHG emissions from

transportation infrastructure (roads, parking, bike / ped,

transit)

Address construction and maintenance activities

Estimate energy and emissions benefits of alternative construction

and maintenance practices, including their incremental costs

Use information available during long range planning / NEPA

analysis (as opposed to detailed material quantity and construction

activity estimates)

Scope of Emissions Addressed in the Model

Calculator Overview – Roadway Inputs

Calculator – Evaluation of Mitigation Strategies

Select energy/GHG reduction strategies using drop-down menus

Most strategies offer simple yes/no choice

Use of a strategy assumes that the agency will deploy that strategy to the maximum extent feasible

Calculator avoids double-counting by applying reductions to different sources (i.e., in-place recycling applies to resurfacing; recycled materials applies to new construction)

Sample Results for Hypothetical MPO

Annualized energy use (mmBTUs), per year over 30 years

Unmitigated Mitigated

Roadways Bridges Rail, bus,

bicycle, ped. Total Roadways Bridges

Rail, bus,

bicycle, ped. Total

Materials 1,490,980 - - 1,490,980 1,490,980 - - 1,490,980

Construction 647,910 - - 647,910 640,160 - - 640,160

Maintenance 112,540 0 0 112,540 112,540 0 - 112,540

Total 2,251,430 - - 2,251,430 2,243,680 - - 2,243,680

Annual GHG emissions (MT CO2e), per year over 30 years

Unmitigated Mitigated

Roadways Bridges Rail, bus,

bicycle, ped. Total Roadways Bridges

Rail, bus,

bicycle, ped. Total

Materials 85,810 - a - 85,810 85,810 - - 85,810

Construction 47,250 - - 47,250 46,680 - - 46,680

Maintenance 8,210 0 0 8,210 8,210 0 0 8,210

Total 141,270 - - 141,270 140,700 - - 140,700

Energy and Emissions Reduction

Policy Analysis Tool (EERPAT)

CONTACT:

Diane Turchetta

Federal Highway Administration

Office of Natural Environment

202.493.0158

John Davies

Federal Highway Administration

Office of Natural Environment

[email protected]

202.366.6039